
Osmo UV-Beschermingsolie
Silk-matt, colourless protection based on natural oils for exterior wood.
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The best Osmo finishes for your outdoor pergola
The best way to finish your outdoor pergola is with Osmo UV-Beschermingsolie or Natuurlijke Olie-Beits, because on a pergola the top side gets the most direct sun, and that's exactly the part that needs the most UV protection.


Silk-matt, colourless protection based on natural oils for exterior wood.
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Osmo Natural Oil Stain is an oil and wax-based product that creates a protective surface after treatment. The surface is then resistant to water, dirt, and sunlight.
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Osmo Country Colour is a product based on oils and waxes that creates a protected surface after treatment. The surface is resistant to water and dirt.
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Osmo Wood Impregnator WR Aqua 4019 is a colorless, ready-to-use, water-based wood impregnation. Osmo Wood Impregnator is suitable for protecting wood in outdoor areas that are not in direct contact with the ground. The impregnation protects against pests such as mold and wood rot, and uniquely, Osmo Wood Impregnator WR Aqua 4019 reduces wood swelling and shrinkage. This product produces almost no smoke during application and is odorless when dry.
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Osmo WR Wood Impregnation 4001 is now Osmo Wood Impregnation WR Aqua 4019 (an improved version).
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Osmo Transparent Wood Finish 000 is a colorless, semi-gloss wood treatment based on a natural oil base for exterior wood. The Transparent Wood Finish is porous, allowing the wood to breathe and reducing swelling and shrinkage. It is water-repellent and will not crack, chip, or peel. The Transparent Wood Finish penetrates deeply into the wood, smoothing the surface even with a single coat. A primer is not required.
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Osmo Primer is suitable for all exterior woodwork requiring a white finish prior to installation. It's ideal for wooden cladding, window frames, fences, garden sheds, pergolas, carports, and gates. Osmo Primer is optimized for professional and, above all, fast application. It is highly drip-resistant and extremely fast-drying, drying in just 3 to 5 hours. This allows both the primer and topcoat to be applied to the wood in a single day. For long-lasting, high-quality protection, a white or light-colored topcoat with Osmo Country House Paint or Osmo Opaque Stain is recommended.
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Thick specialist cleaner developed to clean and refresh greyed exterior wood.
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The Osmo Resin Removal Kit is suitable for removing leaking resin from all exterior wood. The kit can be used for resin on both color-treated and colorless wood.
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Extremely weather-resistant and UV-protective wood finish for treating exterior wood. Osmo Opaque Stain is a breathable and water-repellent product. Once dry, the stain is safe for humans, animals, and plants, and is also suitable for treating children's toys such as playground equipment. Osmo Opaque Stain is suitable for treating almost all exterior wood, such as facades, fences, gates, garden sheds, garden furniture, and carports. The Opaque Stain is not suitable for patios and decking. Osmo Opaque Stain dries after just 3 to 4 hours. This means the wood can be treated with two coats in one day.
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Finish a wooden pergola with Osmo UV-Beschermingsolie on the posts and Osmo Natuurlijke Olie-Beits on the beams, or entirely with Natuurlijke Olie-Beits. A pergola stands free in the garden and gets sun and rain from all sides. The top of the beams catches the most sun and rain and therefore weathers fastest.
UV-Beschermingsolie protects vertical wood against UV light by a factor of 12 compared with untreated wood. Apply two coats: a coloured coat followed by a coat of 420 clear, or two coats of 420. The oil is not suitable for horizontal surfaces, where water lies longer.
Natuurlijke Olie-Beits is a primer and top coat in one and suitable for all exterior wood, including the horizontal beams. Apply two coats. Pigmented colours protect against UV, the clear 701 does not. For a grey look there is, for example, 906 Parelgrijs. Also see canopy and post.
Preferably treat the beams before assembly, so that the joints and end grain are protected too. Let new wood weather for at least six weeks and always test a colour with a sample first. One litre of Natuurlijke Olie-Beits covers about 26 m² per coat. Rinse used cloths with water afterwards, because cloths with oil on them can self-ignite.
Check the top of the beams every spring. Clean with Terrasreiniger and never use a pressure washer. First remove the grey from weathered wood with Power-Gel. When renovating, apply no more than one thin coat. Read more in transparent stain for outdoor use.
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